Edit in JSFiddle

<form>
    <label for=name>Naam: </label><input type=text id=name><br>
    <label for=email>Email: </label><input type=email id=email placeholder="[email protected]"><br>
    <label for=address>Adres: </label><input type=text id=address placeholder="Mijn Straat 54a"><br>

    <input type=submit value=Verzenden>
</form>

form
{
    padding: 10px;
    background: #eee;
    border: 1px solid #555;
    float: left;
}
label
{
    width: 100px;
    display: inline-block;
}
label, input
{
    margin: 2px 0;
}